Which of the Following Is True in a Mach Operating

question 7

Multiple Choice

Which of the following is true in a Mach operating system?

• A) All messages have the same priority.
• B) Multiple messages from the same sender are guaranteed an absolute ordering.
• C) The sending thread must return immediately if a mailbox is full.
• D) It is not designed for distributed systems.

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Definitions:

Average Cost Method

An inventory valuation method that calculates the cost of goods sold and ending inventory value based on the average cost of all items in inventory.

Ending Inventory

The inventory that remains unsold at the end of an accounting period.

LIFO Method

An inventory valuation method where the last items produced or bought are the first ones to be expensed, leading to lower reported profits and taxes when prices are rising.

Periodic System

An accounting system where updates to inventory levels and costs of goods sold are made at the end of an accounting period rather than being tracked continuously.